fixed genfile path error

Author: NicolasHuertas

java/com/engflow/internship/setinput/README.md

@@ -0,0 +1,26 @@
+# Set Inputs Example
+
+## Overview
+
+The goal of this example project is to test the performance of Engflow's remote execution and caching service for different input sizes. The project contains a genrule that writes a set number of `.txt` files in the `genfile` directory. The content of this files is then read and printed out with the `Reader` class.
+
+## Project Structure
+
+- `java/com/engflow/internship/setinput/genfile`: Directory where the `.txt` files generated by the genrule are stored.
+- `java/com/engflow/internship/varyinginputs/main`: Contains the `Main` class which orchestrates the reading process.
+- `java/com/engflow/internship/varyinginputs/reader`: Contains the `Reader` class responsible for reading the files.
+
+## Usage
+
+To generate the test files, build the filegroup target:
+```sh
+bazel build //java/com/engflow/internship/setinput/genfile
+```
+
+Then, the program can be run with the following command:
+
+```sh
+bazel run //java/com/engflow/internship/varyinginputs/main 
+```
+
+To modify the amount of files generated, change the value of the `NUM_FILES` in the `BUILD` file inside the `genfile` directory.

java/com/engflow/internship/setinput/genfile/BUILD

@@ -1,4 +1,4 @@
-NUM_FILES = 10
+NUM_FILES = 16
 
 [genrule(
     name = "benchmark_test_file" + str(x),
@@ -8,6 +8,5 @@ NUM_FILES = 10
 
 filegroup(
     name = "genfile",
-    srcs = glob(["genfile/benchmark_test_file*.txt"]),
-    visibility = ["//visibility:public"],
+    srcs = [":benchmark_test_file" + str(x) for x in range(1,NUM_FILES+1)],
 )

java/com/engflow/internship/setinput/genreader/GenReader.java

@@ -8,38 +8,28 @@
 public class GenReader {
 
     /**
-     * Reads the content of all files in the specified directory and prints it to the console.
+     * Reads the content of the specified file and prints it to the console.
      * @param inputPath
      */
     public void readFiles(String inputPath) {
-        File directory = new File(inputPath);
+        File file = new File(inputPath);
 
-        // Check if the directory exists and is a directory
-        if (!directory.exists() || !directory.isDirectory()) {
-            System.out.println("Invalid directory path: " + inputPath);
+        // Check if the file exists and is a file
+        if (!file.exists() || !file.isFile()) {
+            System.out.println("Invalid file path: " + inputPath + "\n Absolute path: " + file.getAbsolutePath()+
+            "\n File: " + file);
             return;
         }
 
-        // List all files in the directory and check if there are any
-        File[] files = directory.listFiles();
-        if (files == null || files.length == 0) {
-            System.out.println("No files found in the directory: " + inputPath);
-            return;
-        }
-
-        // Read the content of each file and print it to the console
-        for (File file : files) {
-            if (file.isFile()) {
-                try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
-                    String line;
-                    System.out.println("Reading file: " + file.getName());
-                    while ((line = reader.readLine()) != null) {
-                        System.out.println(line);
-                    }
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
+        // Read the content of the file and print it to the console
+        try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
+            String line;
+            System.out.println("Reading file: " + file.getName());
+            while ((line = reader.readLine()) != null) {
+                System.out.println(line);
             }
+        } catch (IOException e) {
+            e.printStackTrace();
         }
     }
-}
+}

java/com/engflow/internship/setinput/main/BUILD

@@ -6,8 +6,6 @@ java_binary(
     deps = [
         "//java/com/engflow/internship/setinput/genreader",
     ],
-    data = [
-        "//java/com/engflow/internship/setinput/genfile:genfile",
-    ],
+    data = glob(["java/com/engflow/internship/setinput/genfile/*.txt"]),
     main_class = "com.engflow.internship.setinput.main.Main",
 )

java/com/engflow/internship/setinput/main/Main.java

@@ -2,13 +2,33 @@
 
 import com.engflow.internship.setinput.genreader.GenReader;
 
+import java.nio.file.Paths;
+import java.nio.file.Files;
+import java.io.IOException;
+
 public class Main {
 
     public static void main(String[] args) {
-        GenReader reader = new GenReader();
+        String genfilePath = "java/com/engflow/internship/setinput/genfile"; // Path relative to bazel-bin
+        String workspacePath = System.getenv("BUILD_WORKING_DIRECTORY");
+        //System.out.println("Workspace path: " + workspacePath);
 
-        String filePath = "//java/com/engflow/internship/setinput/genfile:genfile";
+        if (workspacePath == null) {
+            System.out.println("Workspace path could not be determined.");
+            return;
+        }
 
-        reader.readFiles(filePath);
+        String bazelBinPath = Paths.get(workspacePath, "bazel-bin").toString();
+        //System.out.println("Bazel-bin path: " + bazelBinPath);
+        String fullPath = Paths.get(bazelBinPath, genfilePath).toString();
+
+        GenReader reader = new GenReader();
+        try {
+            Files.list(Paths.get(fullPath))
+                    .filter(Files::isRegularFile)
+                    .forEach(file -> reader.readFiles(file.toString()));
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 }